[Footnote 91: Abulfeda, Annal. Moslem. p. 73. Mahomet could
artfully vary the praises of his disciples. Of Omar he was
accustomed to say, that if a prophet could arise after
himself, it would be Omar; and that in a general calamity,
Omar would be accepted by the divine justice, (Ockley, vol.
i. p. 221.)]